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2. 完成Iplayer开始播放和窗口初始化接口~1

发布时间：2021-06-12 20:19:42编辑：雪饮阅读（）

 這次主要是改造IPlayer::Start()方法以實現門面的最大化，對用戶應該是最小化調用cpp/IPlayer.cpp:

#include "IPlayer.h"
#include "IDemux.h"
#include "IDecode.h"
#include "IAudioPlay.h"
#include "IVideoView.h"
#include "IResample.h"
#include "XLog.h"

IPlayer *IPlayer::Get(unsigned char index)
{
    static IPlayer p[256];
    return &p[index];
}


bool IPlayer::Open(const char *path)
{

    //解封装
    if(!demux || !demux->Open(path))
    {
        XLOGE("demux->Open %s failed!",path);
        return false;
    }
    //解码 解码可能不需要，如果是解封之后就是原始数据
    if(!vdecode || !vdecode->Open(demux->GetVPara(),isHardDecode))
    {
        XLOGE("vdecode->Open %s failed!",path);
        //return false;
    }
    if(!adecode || !adecode->Open(demux->GetAPara()))
    {
        XLOGE("adecode->Open %s failed!",path);
        //return false;
    }

    //重采样 有可能不需要，解码后或者解封后可能是直接能播放的数据
    if(outPara.sample_rate <= 0)
        outPara = demux->GetAPara();
    if(!resample || !resample->Open(demux->GetAPara(),outPara))
    {
        XLOGE("resample->Open %s failed!",path);
    }
    return true;
}
bool IPlayer::Start()
{
    if(!demux || !demux->Start())
    {
        XLOGE("demux->Start failed!");
        return false;
    }
    if(adecode)
        adecode->Start();
    if(audioPlay)
        audioPlay->StartPlay(outPara);
    if(vdecode)
        vdecode->Start();


    return true;
}

void IPlayer::InitView(void *win)
{
    if(videoView)
        videoView->SetRender(win);
}
同樣的cpp/IPlayer.h也需要做點小調整：

#ifndef XPLAY_IPLAYER_H
#define XPLAY_IPLAYER_H


#include "XThread.h"
#include "XParameter.h"

class IDemux;
class IAudioPlay;
class IVideoView;
class IResample;
class IDecode;


class IPlayer : public XThread
{
public:
    static IPlayer *Get(unsigned char index=0);
    virtual bool Open(const char *path);
    virtual bool Start();
    virtual void InitView(void *win);
    //是否视频硬解码
    bool isHardDecode = true;

    //音频输出参数配置
    XParameter outPara;

    IDemux *demux = 0;
    IDecode *vdecode = 0;
    IDecode *adecode = 0;
    IResample *resample = 0;
    IVideoView *videoView = 0;
    IAudioPlay *audioPlay = 0;
protected:
    IPlayer(){};
};


#endif //XPLAY_IPLAYER_H

那麽接下來門面優化后的效果就顯而易見了，對於入口cpp/native-lib.cpp將是最小化的調用： #include <jni.h>
#include <string>
#include <android/native_window_jni.h>

#include "FFDemux.h"
#include "XLog.h"
#include "FFDecode.h"
#include "XEGL.h"
#include "XShader.h"
#include "IVideoView.h"
#include "GLVideoView.h"
#include "FFResample.h"
#include "IAudioPlay.h"
#include "SLAudioPlay.h"
#include "IPlayer.h"


IVideoView *view = NULL;
extern "C"
JNIEXPORT
jint JNI_OnLoad(JavaVM *vm,void *res)
{
    FFDecode::InitHard(vm);


    ///////////////////////////////////
    ///测试用代码

    IDemux *de = new FFDemux();
    //de->AddObs(tobs);
    //de->Open("/sdcard/1080.mp4");

    IDecode *vdecode = new FFDecode();
    //vdecode->Open(de->GetVPara(), true);
    //vdecode->Open(de->GetVPara(), true);

    IDecode *adecode = new FFDecode();
    //adecode->Open(de->GetAPara());
    de->AddObs(vdecode);
    de->AddObs(adecode);

    view = new GLVideoView();
    vdecode->AddObs(view);

    IResample *resample = new FFResample();
    //XParameter outPara = de->GetAPara();

    //resample->Open(de->GetAPara(),outPara);
    adecode->AddObs(resample);

    IAudioPlay *audioPlay = new SLAudioPlay();

    //audioPlay->StartPlay(outPara);
    resample->AddObs(audioPlay);

   IPlayer::Get()->demux = de;
    IPlayer::Get()->adecode = adecode;
    IPlayer::Get()->vdecode = vdecode;
    IPlayer::Get()->videoView = view;
    IPlayer::Get()->resample = resample;
    IPlayer::Get()->audioPlay = audioPlay;


    IPlayer::Get()->Open("/sdcard/v1080.mp4");
    IPlayer::Get()->Start();

    //de->Start();
    //vdecode->Start();
    //adecode->Start();



    return JNI_VERSION_1_4;
}



extern "C"
JNIEXPORT jstring

JNICALL
Java_com_example_xplay_MainActivity_stringFromJNI(
        JNIEnv *env,
        jobject /* this */) {
    std::string hello = "Hello from C++";

    //XLOGI("S begin!");
    //XSleep(3000);
    //XLOGI("S end!");
    //return env->NewStringUTF(hello.c_str());


    //XSleep(3000);
    //de->Stop();
    /*for(;;)
    {
        XData d = de->Read();
        XLOGI("Read data size is %d",d.size);


    }*/

    return env->NewStringUTF(hello.c_str());
}
extern "C"
JNIEXPORT void JNICALL
Java_com_example_xplay_XPlay_InitView(JNIEnv *env, jobject instance, jobject surface) {

    // TODO
    ANativeWindow *win = ANativeWindow_fromSurface(env,surface);
    view->SetRender(win);
    IPlayer::Get()->InitView(win);
    //XEGL::Get()->Init(win);
    //XShader shader;
    //shader.Init();


}

編譯運行v1080.mp4的解碼基本上是沒有什麽問題的


不過目前仍舊還是只有聲音，沒有畫面